The correct connection of the power outlet plug
Under normal circumstances, the three-phase circuit using FireWire red, yellow, blue three colors that three FireWire, zero line using black.
if the power leakage protection device, then plug the socket with electrical appliances, if the trip, indicating that the line is actually the ground line of the root line; if not jump, then the right.
And some places use red that FireWire, black that zero line, yellow and green is the ground line.
Single-phase lighting circuit, the general yellow that FireWire, blue is zero line, yellow and green is the ground.
